National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marion, Marion Municipal Airport (KMNN)

Lat: 40.62°NLon: 83.07°WElev: 994ft.

Fog/Mist

55°F

13°C

Humidity 100%
Wind Speed N 3 mph
Barometer 30.12 in (1019.8 mb)
Dewpoint 55°F (13°C)
Visibility 5.00 mi
Last update 26 May 6:53 am EDT
Extended Forecast for

Sparta OH

  • Today

    Today: Mostly cloudy, with a high near 77. Northeast wind around 5 mph becoming calm in the morning.

    High: 77 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 64. Light and variable wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 74. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Showers
    Likely then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58. Northwest wind 5 to 8 mph.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 72. North wind 10 to 13 mph.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 77. Northeast wind around 5 mph becoming calm in the morning.
Tonight
A chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 64. Light and variable wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 74. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 58. Northwest wind 5 to 8 mph.
Thursday
Sunny, with a high near 72. North wind 10 to 13 mph.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 70.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sparta OH
 40.4°N 82.69°W (Elev. 1309 ft)
Last Update:
6:31 am EDT May 26, 2026
Forecast Valid:
7am EDT May 26, 2026-6pm EDT Jun 1, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation